Give these green friends a sprinkle of used coffee grounds in moderation! for happier, healthier growth. 1. Spider Plant Loves the nitrogen boost; sprinkle lightly on top. 2. Snake Plant Feed sparingly; mix grounds into the soil to avoid clumping. 3. Pothos Mix a pinch into potting mix for lush, trailing vines. 4. Peace Lily Helps encourage deep green leaves; apply once a month. 5. African Violets Use a tiny sprinkle; too much can affect soil acidity. 6. Philodendron Mix into the topsoil for stronger, vibrant leaves. 7. Aloe Vera Only occasional use; mix into soil, not on top. 8. Christmas Cactus A light boost during the growing season. 9. Boston Fern Loves acidity; sprinkle grounds or make a diluted coffee-water mix.